[英]Trouble writing blackjack and solitaire program in java
我已經在這個項目上工作了幾天,但我不知道為什么它不起作用。 希望新的眼睛會有所幫助。 當我運行此命令時,不會發生幾件事。
唯一有效的是管理用戶下注的部分。 一些問題包括:
它不會帶來卡值(假定來自隨機生成1-13之間的數字的類)。
不等待用戶輸入0來繪制更多牌
Card@42a57993
它可能丟失或有多余的括號,但我找不到它們應該/不應該在的位置。 這是我的代碼:
import java.util.Scanner;
public class Game {
private double pot;
private double bet;
private int answer;
private int cardTotal;
Card card1 = new Card();
Card card2 = new Card();
Card card3 = new Card();
// constructor
public Game(){
pot = 100;
bet = 0;
}
Scanner keyboard = new Scanner(System.in);
// GetBetFrom user, prompts user to enter a valid bet, reenter until a valid amount
public double getBetFromUser(){
System.out.println("Your current pot is: "+pot);
System.out.println("Enter your bet amount");
bet = keyboard.nextDouble();
//Rules for the bet
while(bet>pot || bet<0){
if(pot==0){
break;
}
if(bet>pot){
System.out.println("Sorry, you don't have enough money for that, try again");
bet = keyboard.nextDouble();
}
if(bet<0){
System.out.println("That is not a valid bet, please try again");
bet = keyboard.nextDouble();
}
}
return bet;
}
// Game mechanics
public void gamePlay(){
System.out.println("Your first card is: "+card1);
System.out.println("Your second card is: "+card2);
cardTotal= card1 + card2;
System.out.println("Your total is: "+cardTotal);
System.out.println("Enter 0 to draw more, any other number to quit: ");
if(answer == 0); {
System.out.println("Your next card is: "+card3);
System.out.println("Your total is: ");
}
}
public void results(){
if(cardTotal > 21){
System.out.println("You lose your bet");
pot = pot-bet;
}
if(cardTotal==21){
System.out.println("You win three times your bet");
pot = pot-bet+(bet*3);
}
if(cardTotal==20){
System.out.println("You win double your bet amount");
pot = pot-bet+(bet*2);
}
if(cardTotal<=19){
System.out.println("You win your bet amount");
}
}
}
這是我的Card類的代碼
import java.util.Random;
public class Card {
private int cardValue;
Random random = new Random();
public Card(){
cardValue = 1;
}
public int getCard(){
cardValue = (cardValue + random.nextInt(12));
if(cardValue>10)
return 10;
else
return cardValue;
}
public int display(){
switch (cardValue){
case 1: System.out.println("Ace");
break;
case 2: System.out.println("Two");
break;
case 3: System.out.println("Three");
break;
case 4: System.out.println("Four");
break;
case 5: System.out.println("Five");
break;
case 6: System.out.println("Six");
break;
case 7: System.out.println("Seven");
break;
case 8: System.out.println("Eight");
break;
case 9: System.out.println("Nine");
break;
case 10: System.out.println("Ten");
break;
case 11: System.out.println("Jack");
break;
case 12: System.out.println("Queen");
break;
case 13: System.out.println("King");
break;
}
return cardValue;
}
}
我猜你的錯誤正在這里發生:
cardTotal= card1 + card2;
card1
和card2
是Card
類型。 編譯器不知道如何添加它們。
您應該這樣獲取卡總數:
cardTotal = card1.cardValue+ card2.cardValue;
這可能對您有幫助。 我建議您閱讀有關對象及其方法的引用方法。 缺少通過鍵盤輸入的數據的驗證,但這是您的工作:
import java.util.Scanner;
public class Game {
private double pot;
private double bet;
private int answer;
private int cardTotal;
Card card1 = new Card();
Card card2 = new Card();
Card card3 = new Card();
// constructor
public Game(){
pot = 100;
bet = 0;
}
Scanner keyboard = new Scanner(System.in);
// GetBetFrom user, prompts user to enter a valid bet, reenter until a valid amount
public double getBetFromUser(){
System.out.println("Your current pot is: "+pot);
System.out.print("Enter your bet amount: ");
bet = keyboard.nextDouble();
//Rules for the bet
while(bet>pot || bet<0){
if(pot==0){
break;
}
if(bet>pot){
System.out.println("Sorry, you don't have enough money for that, try again");
bet = keyboard.nextDouble();
}
if(bet<0){
System.out.println("That is not a valid bet, please try again");
bet = keyboard.nextDouble();
}
}
return bet;
}
// Game mechanics
public void gamePlay(){
int first= card1.getCard();
int second = card2.getCard();
int third = card3.getCard();
System.out.println("Your first card is: "+first);
System.out.println("Your second card is: "+second);
cardTotal= first + second;
System.out.println("Your total is: "+cardTotal);
System.out.print("Enter 0 to draw more, any other number to quit: ");
answer = keyboard.nextInt();
if(answer == 0) {
System.out.println("Your next card is: "+third);
cardTotal=cardTotal + third;
}
System.out.println("Your total is: "+cardTotal);
}
public void results(){
if(cardTotal > 21){
System.out.println("You lose your bet");
pot = pot-bet;
}
if(cardTotal==21){
System.out.println("You win three times your bet");
pot = pot-bet+(bet*3);
}
if(cardTotal==20){
System.out.println("You win double your bet amount");
pot = pot-bet+(bet*2);
}
if(cardTotal<=19){
System.out.println("You win your bet amount");
}
}
public static void main(String[] args) {
Game game = new Game();
game.getBetFromUser();
game.gamePlay();
game.results();
}
}
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